Electrical connector.



W. 0. KENNINGTN.

BLEGTRIAL CONNECTOR.

APPLICATION FILED 001.10, 1911.

1 ,039,542, Patented Sept. 24, 1912.

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W ifornefl 1 UNITED sTArE-s lriginal? oEEioE.

WILLIAM o. KENNINGION, oEEnooMFIELD, NEW JERSEY, AssIGNoE To THE smits MAGN-Ero co., INC., or NEW YORK, N. Y., A CORPORATION or NEW Yonx.

- ELEc'rt'Ic'AL co'NNEcTon.

specification of Letters Patent.

Application led October 10', 1911. Serial No. 653,971.

To all whom 'it may co'rvcm."

Be it known that I, VILLIAM O. KEN- NINGTON, a subject of the King of Great Britain, residing at Bloomfield, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Electrical Connectors; and I do hereby declare the following to be a full art to which it appertains to make and use the same.

My invention consists' in the novel features hereinafter set forth, reference bein had to the accompanying drawing, whic illustrates an embodiment of the invent-ion which I have selected for purposes of illustration and said invention is fully disclosed in the following description and claims.

The object of my invention is to provide a connector for securing a ieXilole electric conductor, such as an electric cable composed of a plurality-of small wires, or other form of electric conductor, to a stationary part in such manner as to secure good contact and at the same time prevent the conductor from becoming accidentally disengaged and also to prevent injury to the conductor itself which might weaken or break the same.

In the accompanying drawing I have selected for purposes of illustration an embodiuent of my invention which is particularly desirable for the purpose of connecting a. conducting cable composed of tine wires with a part of a magneto electric machine, the particular embodiment herein shown being advantageously employed (for example)l for connecting the low tension terminal of a magneto electric machine to the commutator thereof. but it is obvious that the construction could be employed for other purposes and in other relations without depart-- ing from the invention.

In the said drawing, Figure 1 is an elevation of the connector having one end of the cable inserted and secured therein. Fig. 2 is a sectional view of the same. Fig. 3 is a sectional view showing the parts of the connector detached and the end of the cable in elevation.

In the embodiment of the invention herein shown. 1 represents a metallic sleeve which I term the cable end, said sleeve having on its exterior preferably a knurled portion 1a for convenience in holding the saire and being provided With a longitudinal bore 2 of a diameter' to accommodate the cablelwith its insuiatin covering indicated at 16. At one 'end of t e sleeve the central bore is enlarged as indicated at 4 and internally screw threaded and a conical seat 3 is formed at the point where the bore 2 of smaller diameter joins the bore 4 of larger diameter.

5 represents what I term for convenience, the nipplewhich consists of a metallic sleeve provided at one end with a liared portion 6, the exterior conical surface of which is adapted to fit upon the conical seat 3 of the sleeve l, while the inner surface of the flared portion 6 forms a conical seat 7. The central aperture or bore of the sleeve 5 is also reamed out at the opposite end of the sleeve as indicated at 8, in order that there shall be no sharp edge at that point to engage the cable wires.

10 represents the terminal screw or screw plug` which is provided at one end with a conical portion 1'1, adapted to tit the seat 7 of the nipple and said plug is provided adjacent to the conical tip 11 with a threaded portion 12 to engage the threaded larger bore of the cable end or sleeve 1. The ter- Patented sept. 24., 1912.

minal screw or plug 10 is also provided with a threaded projection 13 adapted to be screwed into and tirmly engage the stationary part to which the cable is to be connected.

In using this device, a portion of theV cable insulation 16 is cut away as indicated in Fig.

3 to expose a length of cable slightly longer than the nipple 5. The ond of the cable is then passed through the sleeve 1 and the eX- posed portion of tho cable wires are passed through the nipple 5 until the smaller end of the nipple engages the insulation 16.

.The fine wires of the cable are then pressed outwardly into circular form in all direc- Aniiiial screw or plug.

firmly into contact "with the seat 3 ot the cable end or sleeve l. lt will thus be seen that the cable is iirnily secured in the cona portion of the insulation 16 is held Within the sleeve 1, thus preventing the angular bending of the cable wires adjacent to the connector and insuring the durability of the cable notwithstanding jar and vibration.

It -is -obvious that variations could be made in the construction without departing from thev spirit of my invention. For ex'- ample, instead of providing the terminal screw or plug ivith'the threadedstern-l, the'screw plug may be-provided with other means for connecting it rigidly to the stationary part `tovwhich it is to be att-ached .thisbeing simply an ordinary mechanical connection. I may also in some instances dispense with the sleeve '5 and reduce the bore of theslceve 1 adjacent Vto the seat 3 to substantially thesize of the cable but l prefer the construction illustrated in Figs. l, 2 and 3 for the reason that the cable vcan be drawn entirely through the sleeve 1, the nipple 5 applied and the endsof the Wires carefully spread out against the seat 7 of the nipple beforev the device is drawn back into the sleeve 1, thus facilitating the insertion of the cable. It should also be understood .that by duplicating the threaded portion 12 and conical ti 11 and dispensing with the threaded portion 13 and providing an additional sleeve 1 and nipple 5, the de vice could be readily used for connecting together tW-o sections of cable, which matter' is .so-obvious that anillustration of the sainey is deemed unnecessary. It should alsol be can be used in connectiou'with an ordinary insulated Wire, if desired, in Wliich'case the extremecnd portion of the Wire can be bent into a circle to engage the seat 7 'of the nip ple and be held against the same by the ternoaaaaa What il claim and desire to secure `by Let ters Patentis:-

l. An electrical connector lcomprising a sleeve havinga. longitudinal aperture theref' vthrough of a size to accommodate the con ductor and its insulating coating g, and provided with` an interior seat, a detachable j nipple having an internal diameter'ffof a size to accommodate the conductor, 'located Within said sleeve and provided with an outwardly extending flange to.. engage said seat, and a terminal plug having a threaded engagement with said sleeve and `having a clamping port-ion adjacent to the flange por- A tion of' said nipple, for clamping portions of the conductor against said iiange and the flange against said seat.

"Inv

2. An electric connector comprising a sleeve, provided with a. longitudinal apen ture. therethrough, to accommodate tlieconl ductorA andV its insulating covering, said aperture being enlarged at lone end of fthe sleeve, and threaded, and forming a conical seatvvithin the sleeve, a tubular nipplelocated'within the sleeve, but separable there` so j from, said nipple havingat one end a flange to. engage the seat-of said sleeve,pprovided with a conical seat on its outer surface, and

having its bore at its opposite end enlarged to prevent injury to. thcc'onductor, anda terminal plug havinga'conical tip-adjacent.

to the seat of. the ni'pple,"a threaded por tion for engaging the interiorly threaded portion of the sleeve, and means forsecur-- ing the plug to a stationarypart. t

sleeve, vhaving a longitudinal aperture'of a diameter sufficient to "accommodate j the zeon# duct-or and its insulating covering, and having a threaded portion at oneend,a remov vl SpAn electric connect-or comprising a,

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